Gateway controller with multi-channel CAN bus communication function

The invention discloses a gateway controller with a multi-channel CAN bus communication function. The gateway controller comprises a CPU (1), a power circuit (5), a dual-redundancy CAN bus circuit (4), a core processing module (6), a dual-redundancy bus communication module (7), an electronic relay switch (2) and an optoelectronic isolator (3). According to the gateway controller, data exchange with multi-CAN subnet control equipment is realized through the dual-redundancy CAN bus circuit (4); switching value signals in various forms are collected through the optoelectronic isolator (3), and the core processing module (6) conducts data collection, logical operation and diagnostic analysis to obtain control requirements; control over controlled equipment is realized through the electronic relay switch (2). The controller is key equipment for multi-CAN-bus subnet system networking for outdoor equipment such as automobiles, special vehicles and engineering machines, each group of CAN network uses two CAN buses to realize dual-redundancy communication, and the problems that a general gateway controller is poor in reliability and single in function are solved.